Duplex catenary pull-over.



G. H. BOLUS.

DUPLEX CATENABY PULL-OVER. APPLICATION men MAR. 1a. 1916.

Patented Jan. 21, 1919.

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GLENN HENRY BOLUS, or MANSFIELD, OHIO, ASSIGNOR TO THE OHIO :ennss coMrANY,

' OF MANSFIELD, 01110, A CORPORATION on NEW JERSEY.

DUPLEX OATENARY PULL-OVER.

Specification of Letters Patent.

Patented Jan. 21,1919.

Application filed March 13, 1916. Serial No. 83,740.

To all whom it may concern:

7 Be it known that I, GLENN II. BoLUs, a citizen of the United States, residing at Mansfield, in the county of Richland and State of Ohio, have invented certain new and useful Improvements in Duplex Catenary Pull-Overs, of which the following is a specification.

This invention relates to catenary trolley wire suspension, and more particularly 1 to thefsuspension of a pair of conductor wires one above the other at a curve or turnout of such a system. The invention consists in the features of novelty in the construction, combination and arrangement of the several parts.-

In the accompanying drawings, Figure 1 is a fragmentary view of a catenary trolley wire suspension system at a curve; Fig. 2 is a side elevation of a pullover device constructed in accordance with the principles of the invention, and Fig. 3 is an end view of the device shown in Fig. 2.

At a curve of a catenary trolley wire suspension system'it is current practice to employ a duplex trolley in which two wires are separated at a distance of two or three inches. In this construction the upper wire is of copper in order to secure the necessary conductivity and the lower wire is of steel in order to give a longer life to the system as the lower wire of a catenary wire suspension system is usually in contact with a sliding collector shoe. Where such a construction is used around a curve it would be necessary to pull off each wire separately which would make a complicated and expensive structure as well as an unsightly and unsafe arrangement. This invention therefore relates to a device which grips and holds two wires of such a system in a fixed relation to each other by employing a single pullover device.

A fragment of a catenary curve construction employing duplex trolley wires is shown in Fig. 1, in which a pair of conductor wires 4 and 5 are supported one above another from a, single messenger or pullover wire 6 which is attached by means of an insulating device 7 to a supporting frame structure 8. The means for supporting the conductor wires 4 and 5 from the pullover wire 6 consists of a number of pullover devices, as shown in detail in Figs. 2 and 3.

Each pullover device comprises a rod 9 with a hook 10 at one end for engaging the a clamping jaw 15.

vice 10 is a wire clamping member 11 having a sleeve portion 12 ,adaptedto-fit over i the rod and with a wlre engaging portion 13 having an upper groove let and a lower Cooperating with this wlre engaging portion 13 is a clamping plate 16 having a groove 17 and a clamping jaw 18. 1 These cooperating clamping portions are secured together by any suitable fastening devices, such as the screws 19. It is obvious that the sleeve portion 12 may be attached to the rod 9 in any suitable manner, such for example as threading it on the end thereof or fastening it by nuts or holding it in place by means of cotter pins 20.

With this construction it is obvious that the two wires 4 and 5 will be supported in a plane at a fixed angle to the rod 9 determined by the angle at which the sleeve portion 12 is disposed to the wire clamping portion. With the proper location of the pullover wire 6 it is possible to maintain the trolley wires 4 and 5 in a vertical position which is desirable, and the rod 9 being maintained at an angle prevents the sliding collector which engages the lowermost trolley wire from catching the rod 9 as the collector passes under the pullover device, which it would be liable to do if the rod 9 were held out horizontally.

WhatI claim is:

1. A duplex wire pullover, comprising a two-part clamp for holding two parallel wires, one of the clamp parts having an integrally formed sleeve which extends over the end of the other member, and a suspension rod attachable in the sleeve.

2. In a duplex wire pullover; a two-part clamp for holding two wires one above the other, one of the clamp parts having a sleeve which is inclined upwardly therefrom above the end of the other member, and means for securing the parts together; and a suspension rod attachable in the sleeve.

3. A pullover hanger for parallel conductors comprising a clamp for engaging the pullover wire 6, or with some other suitable '2 means for attachment conductors, and a rod attached to one oi the clamp parts and extending over the top of the e d m h hof he mem rs when they are engaged by the clamp.

4. In an overhead suspension system for double conductors, a messenger Wire, a pill? WWW-@9135 sneeee at U a one sicleende: low the messenger wire,

a two-part clamp for holding the conductonssin an upright plane, the clamp part on the side opposite the messenger v re having an inclined sleeve ortion extending over the top of. both cendebtors tow and the messenger wire, and; a rod ducters and hole. them one above" the other,

the el ampingrhmherzon the side opposite the messenger beingtprovided with a sleeve extending toward the messenger Wire above a of he c n u t r n ll re s i difier lengths each having means; atthe upper end to engage the messenger Wire, and means at the lowerv endo-f each red for attaching it in the sleeve of the corresponding clamping member- 6. A combined pullover and hanger for double. conductors. comprising a two-part clamp, one of said clamp parts having an inclined sleeve portion. extending: motes: and above thewire' clamping; portions thereof, and a hanger rzod extending through said sleeve and. attached theretol at one end" and having: a hook at the other end for: attachment toa messenger wire.

In testimony whereof I have signed; my name to this specification, in the: presence-oi twb subscribing witnesses, on" this; Qtliday of: March, A. M41916. HENRY BGInHSz' Witnesses -z r fiizgieeieg teammate he obteinei tor five cents each, by addressing the Commissioner of Ratmtg, washingten h Q0 

